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2007 LEXUS IS 250

2.5L V6•RWD•AUTOMATIC•gas
5-Year Cost of Ownership
$29,947 maintenance + known platform issues
~$5,989/yr · 500¢/mile equivalent · $5,159 maintenance + $7,588 expected platform issues
Common Problems & Known Issues

The 2007 IS 250's 2.5L V6 (2GR-FSE) is plagued by carbon buildup on intake valves due to direct injection, leading to rough idle and power loss. More catastrophically, inadequate piston-to-bore clearance causes premature piston ring wear and oil consumption, sometimes requiring complete engine rebuilds before 100,000 miles.

Catastrophic Engine Oil Consumption / Piston Ring Failure

Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Excessive oil consumption (1 qt per 1,000 mi or worse), Blue smoke from exhaust on cold start or acceleration, Low compression on multiple cylinders, Check engine light with misfire codes, Carbon fouling on spark plugs
Fix: Factory piston design has insufficient ring tension and tight bore tolerances. Fix requires complete engine teardown, honing cylinders, installing revised pistons with proper clearance, new rings, bearings, gaskets. 35-45 labor hours for full rebuild. Some shops do short-block replacement instead at similar cost.
Estimated cost: $5,500-9,000

Direct Injection Carbon Buildup on Intake Valves

Common · medium severity
Typical onset: 80,000-120,000 mi
Symptoms: Rough idle, especially when cold, Hesitation or stumble on acceleration, Reduced fuel economy, Misfires under load (P0300-P0306 codes), Loss of power at highway speeds
Fix: Direct injection means no fuel washing valves. Carbon accumulates until airflow is choked. Requires walnut blasting intake valves with manifold removed. 6-8 labor hours including cleaning all six cylinders and new intake gaskets.
Estimated cost: $600-1,200

Transmission Oil Cooler Line Leaks

Occasional · medium severity
Typical onset: 100,000-150,000 mi
Symptoms: ATF puddle under front of vehicle, Transmission slipping or delayed engagement when fluid gets low, Pink or red fluid visible on cooler lines near radiator, Burnt ATF smell if driven low on fluid
Fix: Rubber lines from transmission to cooler degrade and crack at crimp points. Replace both feed and return lines as a set. 2-3 labor hours plus fresh ATF fill and system flush recommended.
Estimated cost: $400-700

Melting Dashboard (Recalled but Time-Limited)

Common · low severity
Symptoms: Dashboard surface becomes sticky or tacky to touch, Glossy sheen developing on dash top, Cracking or peeling of dashboard material, Reflects severely in windshield in sunlight
Fix: Factory TSB and recall existed but expired in many regions. Dash material degrades in heat. Aftermarket companies offer dash covers. OEM dash replacement requires full dash removal and recalibration of airbag sensors. 12-15 labor hours.
Estimated cost: $1,800-3,200

Worn Transmission Mounts Causing Clunk

Occasional · low severity
Typical onset: 80,000-130,000 mi
Symptoms: Clunk or thud when shifting from Park to Drive or Reverse, Vibration at idle in gear, Excessive driveline movement felt through chassis, Transmission shifting harshly
Fix: Rubber transmission mounts collapse from heat and age. Usually rear mount fails first. Replace as a set for best results. 2-3 labor hours total.
Estimated cost: $350-600

Fuel Pump Failure

Occasional · high severity
Typical onset: 120,000-180,000 mi
Symptoms: No-start condition with no fuel pressure, Engine cranks but won't fire, Whining noise from rear seat area before failure, Intermittent stalling at operating temperature
Fix: In-tank fuel pump assembly wears out. Requires dropping fuel tank or cutting access panel through rear seat floor (some shops do this to save time). 3-4 labor hours with tank drop method.
Estimated cost: $650-1,100
Owner tips
  • Check oil level every 500 miles religiously—early catch of consumption prevents catastrophic failure
  • Walnut blast intake valves every 60,000 miles as preventive maintenance on this direct-injection engine
  • Use Top Tier gasoline and occasional Italian tune-up (high RPM run) to minimize carbon on valves
  • Inspect engine for oil leaks at valve covers and timing cover—common weep points that accelerate consumption issues
  • Budget $1,000-1,500 annually for deferred maintenance if buying high-mileage—this platform needs preemptive care
Only buy if engine oil consumption has been documented as minimal and carbon cleaning is current—otherwise you're gambling on a $6,000+ engine rebuild within 20,000 miles.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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